2018 Toyota Yaris iA problems
Light NHTSA footprint — 8 owner complaints. Either a clean record or thin data; we'll show what's there.
The 2018 Toyota Yaris iA has 8 NHTSA owner complaints on file (U.S. federal records, as of September 2026). The most-reported system is tires at 3 complaints, typically surfacing around 38,789 miles (~$150 to repair). Source: NHTSA Office of Defects Investigation.
| Model year | Owner complaints | Recalls |
|---|---|---|
| 2017 Yaris iA | 16 | 0 |
| 2018 Yaris iA (this page) | 8 | 0 |
Limited NHTSA data — only 8 complaints on file. The score reflects what's reported, but a small sample skews easily.
Only 8 NHTSA complaints on file — too few for a confident reliability call. Could be a clean record or just thin data.
Our read of the federal NHTSA complaint and recall record for this exact year and model — not a substitute for a pre-purchase inspection. How we score.
NHTSA crash-test safety ratings 5 / 5 overall
Driver-assist features on the tested model: Electronic stability control: Standard · Forward collision warning: No · Lane departure warning: No
Source: NHTSA New Car Assessment Program — tested configuration: 2018 Toyota Yaris iA 4 DR FWD. Stars rate crash protection in NHTSA's tests, not overall reliability — see the owner-complaint data below for what actually goes wrong.
Top trouble spots 1 category with 3+ complaints
What owners are saying recent NHTSA-filed complaints · verbatim
Cruise control speed does not match speedometer Toyota admits there is a problem, but there is no fix. Toyota case #[xxx] pat lobb Toyota visit 8-24-19 information redacted pursuant to the freedom of information act (foia), 5 u.s.c. 552(b)(6). *tt pat lobb Toyota visit…
The contact owns a 2018 Toyota Yaris IA. The contact stated while driving at an undisclosed speed, the Forward Collision Avoidance and TPMS warning lights illuminated. The contact stated that the accelerator pedal was depressed however, the vehicle failed to respond. The contact…
My traction control goes crazy even when the weather is nice. When driving the traction control will start blinking and turn off. My safety restraint system has an error and my seat belt latch is broken. They said they would not fix it because its not an issue. My car makes loud…
I’m reporting a vehicle safety problem. My 2018 Toyota Yaris IA just had a mileage of 823 miles and was within the warranty time and had a brake system problem caused by the Toyota car quality problem. On August 22 (Sunday), 2021 about 1:00 pm I, with my wife, was going to…
Estimate your repair exposure
Drag to your current mileage. Numbers are derived from this vehicle's complaint history.
Common questions
Is the 2018 Toyota Yaris iA reliable?
Limited NHTSA data. Only 8 owner complaints have been filed for the 2018 Toyota Yaris iA, which is not enough for a meaningful reliability score. Active recalls (if any) are listed on this page and remain authoritative — those are verified defects regardless of complaint volume. For a confident reliability read we look for at least 10 owner complaints in the federal database.
Should you avoid the 2018 Toyota Yaris iA?
Only 8 NHTSA complaints on file — too few for a confident reliability call. Could be a clean record or just thin data. We don't issue a buy/avoid verdict on the 2018 Toyota Yaris iA without a meaningful complaint sample — doing so off a handful of filings would be guesswork.
What should I check before buying a used 2018 Toyota Yaris iA?
There isn't enough NHTSA complaint data on the 2018 Toyota Yaris iA to flag a standout failure pattern. Run the VIN for open recalls — those are free to fix regardless of warranty — get a standard pre-purchase inspection, and ask the seller for service records.
Is the 2018 Toyota Yaris iA a good used car to buy?
Hard to say from federal data alone — only 8 owner complaints have been filed. Lean on the recall list above, a pre-purchase inspection, and a vehicle-history report on the specific VIN. Our data tells you what the model is known for; a history report tells you what that exact car has been through.
What's the most common problem on the 2018 Toyota Yaris iA?
Based on NHTSA records, the most-reported issue is tires, with 3 complaints filed. Typical failure occurs around 38,789 miles. Average repair cost runs about $150 at an independent shop.
What's the most expensive thing that goes wrong?
The tires is one of the costlier repair items. Average repair cost runs about $150 at an independent shop. Typical failure occurs around 38,789 miles. Catching early warning signs can sometimes extend life by 20–30,000 miles.
How do I check if my Toyota Yaris iA has open recalls?
Paste your VIN into the decoder at the top of this page. We pull live from NHTSA, so you'll see exactly which campaigns apply to your vehicle and whether the dealer has logged the fix. Recall repairs are always free regardless of mileage or warranty status.
Is an extended warranty worth it on a 2018 Toyota Yaris iA?
Hard to say from NHTSA data alone with only 8 complaints on file. A quality service contract runs $1,800–3,500 over 3 years. The decision comes down to your specific situation: vehicle cost, miles on it, how long you plan to keep it, and whether you can absorb a $3K–$8K repair without straining cashflow. With limited public data on this vehicle, lean on the recall list above and check owner forums before committing.